Proceedings of the New Zealand Weed and Pest Control Conference, Issues 32-331979 - Pesticides |
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Page 186
... spring flight . Grazing at the cessation of autumn flights ( ca early June ) removed overwintering aphids and high spring BGLA populations were only experienced following reinvasion at the spring flight . No significant seasonal yield ...
... spring flight . Grazing at the cessation of autumn flights ( ca early June ) removed overwintering aphids and high spring BGLA populations were only experienced following reinvasion at the spring flight . No significant seasonal yield ...
Page 188
... spring build - up of aphid populations . While the grazing times were initially selected on an arbitrary basis with due cognisance to accepted management practices , the three treatments did encompass the autumn flight season . With the ...
... spring build - up of aphid populations . While the grazing times were initially selected on an arbitrary basis with due cognisance to accepted management practices , the three treatments did encompass the autumn flight season . With the ...
Page 206
... spring on sweetcorn ( Zea mays ) , barley ( Hordeum sativum ) and asparagus ( Asparagus officinalis ) for control of black beetle ( Heteronychus arator ) adults . Isazophos ( 2.0 kg / ha ) gave consistently good results in comparison ...
... spring on sweetcorn ( Zea mays ) , barley ( Hordeum sativum ) and asparagus ( Asparagus officinalis ) for control of black beetle ( Heteronychus arator ) adults . Isazophos ( 2.0 kg / ha ) gave consistently good results in comparison ...
Contents
Presidential Address | 17 |
Control of meadow barley grass in pasture by the use of herbicides | 31 |
Initial studies into direct drilling of lucerne in Marlborough R I | 40 |
Copyright | |
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32nd N.Z. Weed activity adult Agric Agricultural alachlor application assessed atrazine Auckland azinphos-methyl bait barley BGLA black beetle browntop Canterbury chemical Christchurch crop cultivars damage density difenzoquat disease DSIR effect ester evaluation field crickets foliage fruit glyphosate gorse gorse seedlings grass grub grazing greedy scale growth harvest herbicides hexazinone increase infection insecticide isazophos Kain kiwifruit larvae leaf levels linuron litres litres/ha lucerne maize manuka mefluidide method mite mortality nematode numbers P.O. Box paddocks Palmerston North paraquat pasture pea aphid permethrin Pest Control Conf pesticides picloram plants plots populations Proc procymidone production programme pyrethroid reduced regrowth replicates residues Ruakura ryegrass samples season seed significant significantly simazine soil soldier fly sown species spray stem survival synthetic pyrethroid Table tested thistles tolerance toxicity treated treatments triadimenol trial untreated Weed and Pest weed control weeks weight white clover wild oat yield Zealand